Sites of newly replicated DNA can be detected with antibodies if the DNA is labeled with
a. tritiated thymidine.
b. tritiated uridine.
c. bromodeoxyuridine.
d. bromodeoxythymidine.
Ans: c. bromodeoxyuridine.
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Progressive changes in the fossil record are evidence for evolution because
A. they show descent with modification. B. they show inheritance of acquired characteristics. C. they show evolutionary change at the level of the individual. D. they show gaps in the fossil record.
________ are nonviral genetic elements that have reverse transcriptase activity
Fill in the blank with correct word.
Which structure transmits sound waves to the malleus in the middle ear?
A) Tympanic membrane B) Auditory membrane C) Vestibular membrane D) Cochlea E) Pinna
Varicella-zoster virus (human herpesvirus-3)
A. uses the respiratory epithelium as its portal of entry B. becomes latent in dorsal root ganglia that serve specific dermatomes C. has humans as its reservoir D. causes chickenpox and shingles E. All of the choices are correct